diff --git a/lib/contracts/contribution.js b/lib/contracts/contribution.js
index 8b894b7..7bcff54 100644
--- a/lib/contracts/contribution.js
+++ b/lib/contracts/contribution.js
@@ -60,7 +60,7 @@ class Contribution extends Record {
 
   addContribution () {
     deprecate('The method: `addContribution` is deprecated use `add` instead');
-    this.add(...arguments);
+    return this.add(...arguments);
   }
 }
 
diff --git a/lib/contracts/proposal.js b/lib/contracts/proposal.js
index b5a9f42..e69969b 100644
--- a/lib/contracts/proposal.js
+++ b/lib/contracts/proposal.js
@@ -39,7 +39,7 @@ class Proposal extends Record {
 
   addProposal () {
     deprecate('The method: `addProposal` is deprecated use `add` instead');
-    this.add(...arguments);
+    return this.add(...arguments);
   }
 }